/*
* Copyright (c) 2011-2020 Contributors to the Eclipse Foundation
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
* which is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
*/
package io.vertx.core.impl.future;
import io.vertx.core.AsyncResult;
import io.vertx.core.Handler;
Internal listener that signals success or failure when a future completes.
Author: Julien Viet
/**
* Internal listener that signals success or failure when a future completes.
*
* @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
*/
public interface Listener<T> extends Handler<AsyncResult<T>> {
default void handle(AsyncResult<T> ar) {
if (ar.succeeded()) {
onSuccess(ar.result());
} else {
onFailure(ar.cause());
}
}
Signal the success.
Params: - value – the value
/**
* Signal the success.
*
* @param value the value
*/
void onSuccess(T value);
Signal the failure
Params: - failure – the failure
/**
* Signal the failure
*
* @param failure the failure
*/
void onFailure(Throwable failure);
}